A prosthetic is an artificial device designed to replace a missing body part, such as a leg or an arm. These devices help individuals regain mobility and functionality, allowing them to perform daily activities more easily. Prosthetics can be custom-made to fit the unique shape of a person's body, ensuring comfort and effectiveness. Modern prosthetics often incorporate advanced technology, such as sensors and motors, to mimic natural movement. For example, a bionic arm can respond to muscle signals, enabling the user to grasp objects. This innovation has greatly improved the quality of life for many people, including veterans and accident survivors.